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Ubuntu 20.04 LTS / 22.04 LTS : NumPy vulnerabilities (USN-5763-1)

medium Nessus Plugin ID 168470

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5763-1 advisory.

 It was discovered that NumPy did not properly manage memory when specifying arrays of large dimensions. If a user were tricked into running malicious Python file, an attacker could cause a denial of service. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-33430)

 It was discovered that NumPy did not properly perform string comparison operations under certain circumstances. An attacker could possibly use this issue to cause NumPy to crash, resulting in a denial of service. (CVE-2021-34141)

 It was discovered that NumPy did not properly manage memory under certain circumstances. An attacker could possibly use this issue to cause NumPy to crash, resulting in a denial of service. (CVE-2021-41495, CVE-2021-41496)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected python3-numpy package.

See Also

https://ubuntu.com/security/notices/USN-5763-1

Plugin Details

Severity: Medium

ID: 168470

File Name: ubuntu_USN-5763-1.nasl

Version: 1.7

Type: local

Agent: unix

Published: 12/7/2022

Updated: 9/3/2025

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2021-34141

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2021-41496

CVSS v4

Risk Factor: Medium

Base Score: 6

Threat Score: 5.3

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2021-33430

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:python3-numpy

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/7/2022

Vulnerability Publication Date: 12/17/2021

Reference Information

CVE: CVE-2021-33430, CVE-2021-34141, CVE-2021-41495, CVE-2021-41496

USN: 5763-1